3 years ago

Multiply.

Mathematics

2 answers:

Evgesh-ka [11]3 years ago

8 0

The answer is -2.76.

Hope I Helped (=^-^=)

Damm [24]3 years ago

5 0

Answer:

-2.76

Step-by-step explanation:

took quiz got it correct

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Answer:

a) $s= 9.74$

D. 9.74

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B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

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We can begin calculating the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 75.04$

Now we can calculate the sample deviation with the following formula:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i-\bar X)^2}{n-1}}$

And after replace we got:

$s= 9.74$

Part b

For this case we need to sort the value on increasing way:

[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93

And the median would be the value in the position 13 and we got:

$Median= 74$

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Step-by-step explanation:

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Step-by-step explanation:

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